Method of and machine for scoring can ends



June 30, 1931. J, M YOUNG 1,811,986

METHOD OF AND MACHINE FOR SCORING CAN ENDS Filed Jari. 9, 1924 2Sheets-Sheet 1 June 30, 1931. J. M. YOUNG 1,811,986

METHOD OF AND MACHINE FOR SCORING CAN ENDS Filed Jan. 9, 1924 2Sheets-Shet 2 .mu mun M1 32 Wk? INVENY'OR. BY 4 K AT'IORNEY- PatentedJune 30, 1931 UNITED stares PATENT, OFFIE JOHN M. YOUNG, or BRoo nYN, EWYonK, ASSIGNOR '10 AMERICAN or NEW YORK, N. Y., A CORPORATION OFNEW.JERSEY CAN COMPANY,

METHOD OF AND MACHINE non sooRINe CAN ENDS.

Application filed January 9, 1924. Serial No. 685,120.

This invention relates to a method of and machine for scoring can endsto facilitate the removal of a section thereof to open theqcan after theend has been permanently secured to the body.

The method of scoring can ends which has heretofore been in general useinvolves the use of a variety of dies in'a punch press, a special diebeing required for each size and shape of end. This obviously requiresthat a great many dies be kept on hand, since a single die is limited toa single specific form of score line. The provision of such dies entailsvery considerable expense and, furthermore, since they. must be changedfor each type of scoring operation, there is of necessity such delayandditliculty' in effecting the substitution of dies that the cost ofoperation is relatively high. When it is considered, also, that such adie can be used only for a limited period of time, which,- in practice,is comparatively short, it will be apparent that this method of scoringis far from economical.

lnaccordanc'e with my invention, a single scoring roller is employed forall operations which the machine may be required to perform, and thisirrespective of the particular size or type of end which is to' bescored. It may, therefore, be said to be the main object of theinvention to provide a new method of scoring, and a cover or end scoringmachine which eliminates the necessity for the expensive die operationshereinbefore' referred to and which involves the use of a single scor-"ing element which is adapted to function equally well upon various formsand sizes of cancovers. I

'Another important feature of the invention is that no feeding devices,other than the scoring roller itself, are required to direct the coversin their movement during the scoring operation.

Numerous other objects and advantagescof the invention will be apparentas it is better understood from the following description, which, takenin connection with the accoInpanying. drawings, discloses a preferredembodiment thereof.

Referring to the drawings, I

Figure l is a side elevation, partially broken away, of a scoringmachinein which my invention is embodied;

Fig. 2 is a top plan view of the machine;

Fig. 3 is an 'elevational detail, showing the scoring roller in elevatedposition;

Fig. 4 is a sectional View, taken substantially along the section line44 in Fig. 1 and lllustrating the scoring roller lifting means;

Fig. 5 is asection taken substantially on the line 5-5 of Fig. 1 andshowing in detail the brake mechanism employed to overcome the momentumof the machine after the driving mechanism is disconnected; and

' Fig. 6 is a bottom plan View of the cover, feeding, roller and gauge,certain parts of the mechanism being broken away for betterillustration. r

The machine which I have shown on the drawings for purposes ofillustration, comprises primarily a substantial standard 21 and a head22 in which the operating mech anism is mounted, said head having anextended table, or cover support 23at one side thereof. s. driven shaft24 is journaled in bearings 25 and 26 in the head and carries at itsouter end, beyond the bearing 26, a driving pulley 27, whichis adaptedto be driven by asuitable belt from any available source of power.Aroller 28 is mounted on the inner end of said shaft 2 l and extends '80through an opening 29 in the table 23 so that the upper part of saidroller protrudes slight ly above the surface of said table. A secondshaft 31 is mounted above the shaft 24: and has bearings 32 and 33, thelatter of which is pivoted at 34 to an upwardly extending bracket 35formed integrally with the head 22. The bearing 32is pivoted at 36 to aslide 37 mounted in Ways 38 in thehead 22. The slide 3'? is formed witha central. cut-out or opening 37 arranged around'the shaft 24.- Ascoring roller 39 is carried upon the inner end of the shaft 31 and isadapted to operate upon a can cover l1 upon the table 23, as willhereinafter appear.- By scoring roller I mean one having a scoring edgeprojecting in a radial direction relative to the axis of the roller.Said roller, 1n the present instance, is provided with a single scoringedge 2 an is mo nted-11 allgnlllim with the roller 28 upon the shaft 2%.lhe shafts 2d and 31 are geared togetner by means of spur gears 43 andmounted respectively upon said shafts at the inner side of the bearings26 and 83.

A clutch 45, of standard construction, is provided upon the shaft 2da idis adapted to mesh with a hub portion l6 on the pulley 27, to connectsaid shaft and pulley to cause operation of the machine. Said clutch isoperated by means of a bell crank lever 47, ha ing a bifurcated upperarm l8, engaging a circumferential groove e9 on the clutch 4-5, saidbell crank being piv ted at 51 to a bracket 52 attached to the head 22.A rod 53 connects the lower arm of said lever to a foot lever 54 pivotedat 55 in the standard 21 and having a pedal 56 on the front end thereof.iheclutch is normally held (liqengaged by means of a spring connected atone end to the foot lever 5 and at the opposite end to the base 53 ofthe standard 21. It will be obvious that the machine may be thrown intooperation by an atteniant by merely depressing the foot lever 56 and isautomatically stopped by release of said lever. I

24-, intermediate Mounted upon the shaft a spur gear 59, ear and cam 61the bearings and 26, is

having oearmeshin with a combined mounted on a short shaft ings in thehead 22 and in bearing bracket 63 extending inwardly within the head Theslide 3'? has an extension on its under side, which carries a rolleradapted to ride in a cam groove 66 at) in the cam gear 61. When theshaft 2% is rotated, the motion thereof is thus imparted to said caingear 61, which periodically lifts the slide 3-7, thereby raising theshaft 31 about the pivot In this manner, the roller 39 is elevated andheld in raised position lon enough to permit insertion or removal acover.

In operation, the rollers 39 and 28 are continuously rotated and canends are suppliedto them as they separate and are scored as separated,as shown in 39 then descends into engagement with said cover, which isalso in contact with the roller they come together in the form of thecovers rollers are The roller machine shown in the drawings, arepositioned by hand when the 28. The cutting edge cuts a scor line, inthe present instance on the under side of the cover, and the feedingroller 28 is adapted to engage in the depressed panel 6'? of said cover,the wall 68 of said panel engaging said roller and guiding the cover inits rotation.

I provide a gauge adjustably secured to the frame by means of a screw T3extending through a slot 74., the purpose of said gauge being to contactwith the outer edge the cover ll to hold the latter inwardly towarc thefeeding roller 28. This gauge, in connection with said feeding roller28, thus provides means for maintaining a definite relationship betweenthe line of score and the periphery of the cover.

By employing a different size feeding roll er 28, this relationship maybe varied and I have shown, in dotted lines in Fig. 6, a larger roller28, indicating also in dotted lines, the resultant changed position ofthe cover 41 and gauge 72. The points of contact between the smallerroller 28, shown in full lines in Fig. 6, and the panel wall 68 on theunder side of the cover are indicated by'the reference character and thepointsof contact between the larger roller and panel wall 68 areindicated at 76. This results in the different peripheral positionsindic ied respectively by the numerals 77 and 78 in said Fig. 6 and acorresponding change in the distance of the line of score from theperiphery of the cover.

For the purpose of overcoming the momentum of the machine in stopping, Iemploy a standard brake 69 mounted on the shaft 24 and connected bymeans of an arm 71 with the auxiliary shaft 62.

It is thought that the invention and many of its attendant advantageswill be understood from the foregoing description, and itwill beapparent that various changes may be made in the form, construction andarrangement of the parts without departing from the spirit and scope ofthe invention, or sacrificing all of its material advantages, the formhereinbefore described being 'merelya preferred embodiment thereof.

-1 claim:

1. The method of scoring circular can ends which consists in rotatingacutting edge relative to the can end and thereby cutting a score in .thecan end, without penetrating through the metal of the same at apredetermined distance from theedge of the end, and at the same timecausing the rotation of the can end by the scoring direction andpressure, and confining the rotation of the can end to a circulardirection.

2. A machine for scoring can ends, comprising a frame, a non-cuttingfeeding roller rotatably mounted in said frame and having a cylindricalsmooth surface, a scoring and canend rotating roller adapted tocooperate with said feeding roller to rotate a can end and cut a scoreline in the surface thereof, the axes of said rollers being arrangedside by side, and frame bearings holding said rollers from'movingtowards or from each other.

3. A machine for scoring can ends, comprising .a frame, a feeding rollerrotatably mounted in said frame, a scoring roller adapted to cooperatewith said feeding roller to rotate a can cover andcut a score line inthe surface thereof, and means for periodically separating said rollersto permit insertion or removal of an end andfor unyieldingly SCI ' inthe frame, means independent of said rollers for confining the can endto rotation in a circle, and means for automatically raising andlowering the scoring roller during operation of the machine.

5. A machine for scoring can ends, or the like, comprising a frame,cooperating rollers mounted in the frame, and adapted to engage an endtherebetween, one of said rollers being a scoring roller, a pivotedshaft upon which said scoring roller is mounted, means independent ofsaid rollers for confining the can end to rotation in a circle and meansfor periodically lifting said shaft about its pivot to separate saidrollers and permit insertion and removalof the ends.

6. A machine for scoring can ends, or the like, comprising cooperatingrollers for rotating an end therebetween, one of said rollers having ascoring edge thereon and cutting a circumferential score line duringrotation of the end, a pivotally mounted shaft upon which said scoringroller is mounted, means independent of said rollers for confining thecan end to rotation in a circle and means for periodically raising andlowering said shaft about its pivot to bring the roller intermittentlyinto scoring position and to permit insertion and removal of the ends.

7. A machine for scoring can ends, or the like, comprising cooperatingrollers for rotating an end therebetween, one of said rollers having ascoring edge thereon and cutting a circumferential score line duringrotation of the end, a pivotally mounted shaft upon which said scoringroller is mounted, means independent of said rollers for confining thecan end to rotation in a circle and means for periodically raising andlowering said shaft about its pivot to bring the roller intermittentlyinto scoring position and to permit insertion and removal of the ends,said means comprising a slide moving in ways within the frame and a camfor actuating said slide.

8. A machine for scoring can ends, or the like, comprising a frame,cooperating rollers having respectively knife edged andsmooth surfaces,mounted in said frame and adapted to perform a scoring operation upon acover positioned therebetween, and a gauge for retaining the edge of thecover in predetermined position with respect to said rollers and causingthe cover to rotate in a circle while it is being scored.

9. A machine for scoring can ends, or the like, comprising a frame,cooperating rollers mounted in said frame and adapted to perform ascoring operation upon a cover positioned therebetween, and a gauge forretaining the edge of the cover in predetermined position with respectto said rollers, said gauge being adjustable and adapted to cooperatewith feeding rollers of different size to vary the distance of the scoreline from the periphery of the cover. and causing the cover to rotate ina circle while it is being scored.

JOHN M. YOUNG.

